\Gon`o*cho"rism\, n. [Gr. ? offspring + ? to
separate.]
(a) Separation of the sexes in different individuals; --
    opposed to hermaphroditism.
(b) In ontogony, differentiation of male and female
    individuals from embryos having the same rudimentary
    sexual organs.
(c) In phylogeny, the evolution of distinct sexes in species
    previously hermaphrodite or sexless.